Improvement in stove-pipe dampers



G. J. CLINE. I Stove-Pipe Damper.

No. 222,667. PatentedDec. 16,1879.

UNITED STATES PATENT OEEIcE.

GEORGE J. OLINE, OF GOSHEN, INDIANA.

IMPROVEMENT IN STOVE=PIPE DAMPERS.

Specification forming part of Letters Patent'No. 222,667, dated December 16, 1879; application filed October 18, 1879. r

To all whom it may concern:

Be it known that I, GEORGE J. GLINE, of Goshen, in the county of Elkhart and State of Indiana, have invented'a new and valuable Improvement in Stove-Pipe Dampers and Spark and Soot Arresters; and I do hereby declare that the following is a full, clear, and exact description of the construction and operation of the same, reference being had to y the annexed drawings, making a part of this specification, and to the letters and figures of reference marked thereon. i

Figurel of the drawings is a representa tion of a top view of the damper-blank, and Fig. 2 is a representation of a stovepipe with the damper applied.

This invention has for its object to provide a spark and soot arrester for stove-pipes and lines which shall be simple and economical in its construction, and which will effectively throw down sparks and soot in the pipe, while acting at the same time as an automatic or self-regulatin g damper.

The invention consists in the construction and novel arrangement of the spiral strip out from a single piece of sheet metal, and drawn out or extended, so that its whirls are inclined inward or toward the open central portion, while the spaces between the whirls, and bounded thereby, are directed downward and outward toward the wall of the pipe, said strip being suspended on a pivot through its upper whirls, which areof nearly the diameter of the pipe, the strip or .damper being designed to turn freely therein, when suspended to the bearings B, by a pivot, d, passing through a perforation in the central portion,

b, of the strip. This central portion, 1), is in the form of a small disk, and serves as the central stop or deflector over the open central with the draft, its speed of revolution being automatically regulated thereby, and, on account of its format-ion, it will deflect or throw downward the sparks and soot, instead of lowing these products to pass up the pipe.

When the draft is shut off the damper remains quiet. I

It is an excellent automatic damper and spark and soot arrester, of simple construction, and easily applied.

What I claim as my invention, and desire to secure by Letters Patent, is-- The automaticdamper andspark and soot arrester consisting of the extended disk, spiral D, having the central portion, 1), pivoted to suitable bearings, and the inwardly-inclined whirls 0 below the same, the walls bounding spaces g between the whirls being inclined downward and outward from the open central space, f, substantially as specified.

In testimony that I claim the above have hereunto subscribed my name in the presence of two witnesses. I

' GEORGE J. OLINE.

Witnesses:

HENRY V. GURrIs, UTLEY B Oonris. 

